Home / 31,819.91-47,729.40-10,755.45

Finding the Fourth Proportional to 31,819.91, 47,729.40 and 10,755.45

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Solution

The fourth proportional to 31,819.91, 47,729.40 and 10,755.45 is: 16,133.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,819.91 : 47,729.40 = 10,755.45 : x
  2. Step 2: Convert to fraction form
    31,819.91/47,729.40 = 10,755.45/x
  3. Step 3: Cross multiply
    31,819.91x = 47,729.40 × 10,755.45
  4. Step 4: Simplify right side
    31,819.91x = 513,351,175.23
  5. Step 5: Solve for x
    x = 513,351,175.23/31,819.91
  6. Step 6: Final answer
    x = 16,133.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.